Global Patent Index - EP 3440547 B1

EP 3440547 B1 20221012 - QOS CLASS BASED SERVICING OF REQUESTS FOR A SHARED RESOURCE

Title (en)

QOS CLASS BASED SERVICING OF REQUESTS FOR A SHARED RESOURCE

Title (de)

AUF QOS-KLASSE BASIERENDE VERSORGUNG VON ANFRAGEN FÜR EINE GEMEINSAM GENUTZTE RESSOURCE

Title (fr)

PRISE EN CHARGE DE DEMANDES BASÉES SUR UNE CLASSE DE QUALITÉ DE SERVICE DESTINÉES À UNE RESSOURCE PARTAGÉE

Publication

EP 3440547 B1 20221012 (EN)

Application

EP 17715847 A 20170320

Priority

  • US 201662320379 P 20160408
  • US 201615274665 A 20160923
  • US 2017023185 W 20170320

Abstract (en)

[origin: US2017293578A1] Systems and methods are directed to managing access to a shared memory. A request received at a memory controller, for access to the shared memory from a client of one or more clients configured to access the shared memory, is placed in at least one queue in the memory controller. A series of one or more timeout values is assigned to the request, based, at least in part on a priority associated with the client which generated the request. The priority may be fixed or based on a Quality-of-Service (QoS) class of the client. A timer is incremented while the request remains in the first queue. As the timer traverses each one of the one or more timeout values in the series, a criticality level of the request is incremented. A request with a higher criticality level may be prioritized for servicing over a request with a lower criticality level.

IPC 8 full level

G06F 9/54 (2006.01); G06F 13/16 (2006.01)

CPC (source: EP US)

G06F 9/546 (2013.01 - EP US); G06F 12/0811 (2013.01 - US); G06F 13/1626 (2013.01 - EP US); G06F 13/1663 (2013.01 - EP US); G06F 13/16 (2013.01 - US); G06F 2212/1024 (2013.01 - EP US); G06F 2212/283 (2013.01 - US)

Citation (examination)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

US 11221971 B2 20220111; US 2017293578 A1 20171012; CN 109074290 A 20181221; EP 3440547 A1 20190213; EP 3440547 B1 20221012; WO 2017176446 A1 20171012

DOCDB simple family (application)

US 201615274665 A 20160923; CN 201780021153 A 20170320; EP 17715847 A 20170320; US 2017023185 W 20170320